.f-button {
  outline: none;
  border: none;
  background-color: #fff;
  border-radius: 2px;
  padding: 2px 4px;
  min-width: 60px;
  min-height: 26px;
  font-size: 16px;
  text-align: center;
}

.f-button:hover {
  background-color: #f1f1f1;
  cursor: pointer;
}
.f-button:active {
  background-color: #e1e1e1;
}
